主题：[讨论]字符集合转化为整数型集合失败

Dim S_int_list As New List(Of Integer)

For Each s_u As String In S_u_s

    If s_u IsNot Nothing Then

        Dim n_n As Integer 

        If Integer.TryParse(s_u, n_n) Then

            s_int_list.Add(n_n)

        End if

    End If

Next

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